Engine horsepower and performance depends on a lot of variables - spark intensity, fuel pressure, intake air temperature (colder is better) and exhaust flow. With restrictive exhaust flow, the engine must work harder to eliminate waste products - rather like you and I when we don't get enough fiber. A free-flowing exhaust means the engine doesn't have to work as hard to rid itself of exhaust gases, which results in greater horsepower available for doing its primary job - getting YOU from point A to point B. Since 1988, BBK Performance products have become legendary among members of the performance auto enthusiast community. Whether it's the freeway or the speedway, BBK Headers can make a difference in how your vehicle responds to the throttle. BBK’s famous CNC-Series performance and quality ensures that the company's LS-1 headers give GM LS-1 Corvette owners an easy and affordable way of adding 12-20 horsepower to their engines' output. Also available for the F-Body style, BBK Headers feature your choice of chrome or polished ceramic finishes and include new bolts for simple bolt-on installation. BBK Headers are available in both finishes with C-5 Corvette units featuring polished ceramic coating as standard equipment. Motor hobbyists certainly deserve professional customer support while buying quality parts for a car or truck. So of course we've created a 24/7 customer service desk to answer all your queries. Everybody hates to pay for shipping, that's why there is always totally free shipping for every order more than $50. If you can find a better price, call us - we will meet or beat any advertised price for auto parts.